@media (min-width: 1400px){
  .container {
    width: 1462px;
  }
}
.nav{
  width:100%;
  height:90px;
  position: fixed;
  top:0;
  bottom:0;
  z-index: 999;
  >div{
    overflow:hidden;
    .pic{
      height:90px;
      float:left;
      >img{
        width:197px;
        height:37px;
        margin-top:26.5px;
      }
    }

    >ul{
      float:right;
      height:90px;
      >li{
        text-align:center;
        float:left;
        font-size:18px;
        line-height:90px;
        margin-right:50px;
      }
    }
  }

}